Ventilator for soil-pipes



(No Model.)

J.l W. GRIFFIN.

VENTILATOR FOR SOIL PIPES.

Patented Feb lwwmm n. rzrzns. vmrunwwpner. minimun uc.

UNITED STATES PATENT OEErCE.

JOHN W. GRIFFIN, OF BFFALO, NEW'YORK.

v-ENTILATOR FOR SOIL-Pipes.

SPECIFICATION forming part of Letters Patent No. 358,262, dated February 22. 1887.

Application tiled December 6, 1886. Serial No. 220,762. (No modeLl To @ZZ whom it may concern,.-

Beit known that l, JOHN W. GRIFFIN, of the city of Buffalo, inthe county of Erie and State of New York, have invented new and useful Improvements inVentilators for Soil-Pi pes, of which the following is a specification.

rl'his invention relates more particularly to an improvementin the Ventilating-pipes which are connected with the soil-pipe in buildings and extend above the roof thereof, and has for its object to provide a simple and inexpensive water-tight joint between the Ventilating-pipe and the roof of the building, and to render the Ventilating-pipe vertically adjustable.

The invention consists of the improvements which will be hereinafter described, and pointed out in the claims.

ln the accompanying drawings, Figure l represents a fragmentary vertical sectionof a building, showing the soil-pipe extending from the sewer through the building and provided with my improvement. Fig. 2 represents a vertical section, on an enlarged scale, of the upper portion of the soil-pipe with the ventilator attached thereto and extending through the roof of the building. Fig. 3 is a top plan .view of tlie'ventilating-pipe. Figs. 4t and 5 are cross-sections in lines a; m and 1/ y, Fig. 2,l

respectively. Fig. 6 is a vertical cross-section in line z z, Fig. 4. Fig. 7 is a vertical section, on an enlarged scale, of the joint connecting the ventilat-iugpipe with the soil-pipe. Fig. Sis a cross-section in line z z, Fig. 7.

Like letters of reference refer to like parts in the several figures.

A represents the upright-soilpipe which extends through the building, and is connected below the ground with the drainpipe B,which leads to 'the-sewer B. The soil-pipe A. extends upwardly through the different iioors of the building to within a short distance below the roof, and is provided at its upper end with a socket, o.

C represents the Ventilating-pipe, which is secured with its lower end in the socket a of the soilpipe. The Ventilating-pipe C projects through an opening, d, in the roof D, and is provided at its upper end with a screw-thread, e,which may be a single or a double thread, as may be preferred.

F represents a pipe or tubular cover, which surroundsthe pipe C above the roof D, and is provided with an internal screw thread, f, which engages over the screw-thread e of the pipe C. The pipe F is provided at its top with laterally-projecting lugs or ears f', to which is secured a cap, G. The cap G is constructed in the form of a bell or inverted cup, and projects beyond the outer edge of the pipe F and restswith its lower edgeupon the lugs f. The cap G protects the top of the pipe F from the weather and permits the escape of the foul gases through the openings g between the lower edge of the cap and the top of the pipe F.

H represents a plate of lead or other suitable metal,which is secured to the root" l) around the pipe C, and provided with an upwardly-projecting sleeve or collar, h, which is preferably cast or formed in one piece with the plate H. The sleeve h surrounds the pipe C above the roof, and its upper portion is inclosed by the pipe F, the lower portion of the latter below the screw-threads f being large enough to permit it to be easily passed over the sleeve h. The upper portion of the plate H is covered by adjacent shingles or other covering of the roof. The plateH is secured to theroof with its sleeve h registering with the opening d. The pipe C is inserted from above through the sleeve hand plate H, and its lower end seated in the socket a of the soil-pipe. The pipe C is firmly secured in the socket of the soilpipe by a collar, z', which is fastened to the end of the pipe C and held in the socket by a filling or packing of lead, fi. The cover F is now applied to the pipe C and screwed down until its lower end extends over the sleeve h, thus forin-v ing a watertightjoint around the opening in the roof. By this means a solder-joint is dispensed with and the dangers attending the formation of solder-joints near wood-work are avoided, while a more durable joint is produced. p

K represents the lower Ventilating-pipe or air-inlet pipe connected with the drain-pipe B, between the main trap 7.o and the soil-pipe A, and extending above thesurface of the ground. The pipe K is provided with an external screwthread, to which a tubular cover, L, is applied, which is provided with a corresponding internal screw-thread. The cover L is provided with a cap, Z,which projects beyond the upper edge of the cover L, so as to admit the exter- -nal air to the same. The air passes down- Wardly through the coverL and pipe K, then inwardly through the drain-pipe B, and upwardly through the soil pipe A, und out through the ventilator. Y 5 By adjusting the tubular cover L on the pipe K, the cap Z o1' the Cover onu be located uit the desired height above the ground.

I claim as my invention- 1. The Combination, with the Ventilating- 10 pipe extending through the roof, of n plate, H, resting on the roof, and provided with n collar, 71, surrounding the Ventilating-pipe, nud n tubular cover, F, surrounding the Ventilating-pipe and the collar h and made verticull y adjustu` I5 ble on the ventilatiug-pipe, substantially ns set forth.

2. The combination, with the soil-pipe, of :t Ventilating-pipe extending through the roof of the building and provided above the roof with :in external screw-thread, a plate, H, secured to the roof and provided with :l collar, 1,\vhieh surrounds the Ventilating-pipe, and a tubular cover, F, provided with mi external screwthrend und surrounding the Ventilating-pipe and the collar l1., substantially as Set forth. 2 5

fitness my hund this 20th doy ol' November, 1836.

JOHN XV. GRIFFIN.

\Vit1iessesz JNO. J. BoNNnn, CARL F. (f1 nvnn.

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